Manual button type door lock

Abstract

A manual button type door lock comprises a button, a spring bolt cover plate, a spring bolt and a door lock seat, fixed installation holes are formed in the corresponding positions of the spring bolt cover plate and the door lock seat respectively, the front side of the spring bolt is an inclined face, the middle of the rear side of the spring bolt is connected with a square frame, a rolling shaft and a roller are obliquely installed in the square frame, and the spring bolt and the door lock seat are connected through a guide rod with a spring. The front end of the button is a spherical head, the rear end of the button is a square column, an inclined opening is formed in the tail end of the button, the inclined opening direction is consistent with the inclined installation direction of the rolling shaft, a counter bore is formed in the middle of the spring bolt cover plate, a round hole is formed in the middle of the door lock seat, the counter bore, the middle of the square frame and the round hole are located on the same line, the button penetrates through the counter bore to be installed and sleeved with the reset spring, and the inclined opening part is attached to the roller. The door lock is installed on the isolation equipment of the small detection device, a sealing door of the isolation equipment can be rapidly opened and closed, and reagents or consumables of the detection equipment can be conveniently and rapidly replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of door locks, and in particular relates to a manual button type door lock. Background Art

[0002] Due to the special detection method of some small-scale detection equipment, in order to prevent external environmental interference or safety accidents during the detection process, the detection chamber needs to be isolated from the outside world to ensure that the detection data is accurate and reliable and to avoid safety accidents. In order to facilitate the replacement of detection reagents or consumables, the device used to isolate the detection chamber needs to be equipped with a cover door, but the cover doors in the form of flip covers, sola doors or rotating covers that are easy to open and close are difficult to meet the equipment's requirements for specific environments such as waterproofness, salt spray resistance, and electromagnetic shielding. Sealed doors that can meet shielding requirements need to be equipped with door locks, but the opening and closing process of the door locks is relatively cumbersome, which will delay the detection process that requires frequent replacement of reagents or consumables and reduce detection efficiency. Utility Model Content

[0003] In view of the above problems, the utility model provides a manual button type door lock, which can be used on a sealed door for isolating a detection device and facilitate its rapid opening and closing.

[0004] A manual button door lock, characterized in that it includes a button, a lock tongue cover plate, a lock tongue and a door lock seat, fixed installation holes are respectively opened at corresponding positions of the lock tongue cover plate and the door lock seat, bolts pass through the fixed installation holes of the lock tongue cover plate and the door lock seat to fix the two components in connection, and the part of the bolt passing through the door lock seat is used to fix the door lock in the installation position; the front and rear sides of the door lock seat are both reserved with spaces for installing the lock tongue and the lock tongue is installed in the door lock seat, the front side of the lock tongue is an inclined surface, the middle part of the rear side is connected to a square frame, screw holes are opened on both sides of the rear side, a plurality of holes are symmetrically opened at the rear ends of the left and right sides of the square frame, the openings are arranged obliquely toward the front side of the lock tongue, and the roller is It is installed in the square frame through the opening, and a roller is arranged outside the roller shaft, and the roller and the roller are clearance-fitted; a through hole is opened at the position corresponding to the screw hole on the lock tongue on the rear side of the door lock seat, and the lock tongue guide rod passes through the door lock seat and is inserted into the screw hole to connect the lock tongue and the door lock seat, and a lock tongue spring is arranged outside the lock tongue guide rod; the front end of the button is a spherical head, the rear end is a square column and an oblique mouth is formed at the end, and the direction of the oblique mouth is consistent with the oblique installation direction of the roller, a countersunk hole is opened in the middle of the lock tongue cover plate, and a circular hole is opened in the middle of the door lock seat, the countersunk hole, the middle of the square frame and the circular hole are located in a line, the button is installed through the countersunk hole and a reset spring is installed, and the oblique mouth part fits with the roller.

[0005] The beneficial effects of the utility model are as follows: when the button is pressed, the sliding friction of the oblique mouth at the rear end of the button is converted into the rolling friction of the roller, pushing the lock tongue backward to release the lock; after the button is released, the button is rebounded by the reset spring, and the lock tongue spring pushes the lock tongue forward to lock it. When installed on the isolation device of a small detection device, the sealed door of the isolation device can be quickly opened and closed, which is convenient for rapid replacement of reagents or consumables of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 An exploded view of a manual push-button door lock.

[0007] Figure 2 The figure is a state diagram of a manual push-button door lock when locked.

[0008] Figure 3 The figure is a state diagram of a manual push-button door lock when unlocking.

[0009] Figure 4 It is a side sectional view of a manual push button door lock.

[0010] Figure 5 It is a plan cross-sectional view of a manual push-button door lock.

[0011] Among them: 1-button, 2-reset spring, 3-lock tongue cover plate, 4-lock tongue, 5-roller, 6-roller, 7-lock tongue spring, 8-door lock seat, 9-lock tongue guide rod. DETAILED DESCRIPTION

[0012] Embodiment 1: A manual push button door lock, comprising a button 1, a bolt cover plate 3, a bolt 4 and a door lock seat 8, wherein the bolt cover plate 3 and the door lock seat 8 have fixed installation holes at corresponding positions, and bolts pass through the fixed installation holes of the bolt cover plate 3 and the door lock seat 8 to fix the two components in connection, and the bolts pass through the portion of the door lock seat 8 to fix the door lock at the corresponding installation position of the sealed door. The front and rear sides of the door lock seat 8 are both reserved with spaces for installing the bolt 4, and the bolt 4 is installed in the door lock seat 8, the front side of the bolt 4 is an inclined surface, the middle part of the rear side is connected to a square frame, screw holes are provided on both sides of the rear side, and a plurality of holes are symmetrically provided at the rear ends of the left and right sides of the square frame, and the openings are arranged obliquely toward the front side of the bolt 4, and the roller 6 is installed in the square frame through the opening, and a roller 5 is arranged outside the roller 6, and the roller 6 and the roller 5 are clearance-matched. A through hole is provided at the rear side of the door lock seat 8 at a position corresponding to the screw hole on the lock tongue 4, and the lock tongue guide rod 9 passes through the door lock seat 8 and is inserted into the screw hole to connect the lock tongue 4 and the door lock seat 8, and a lock tongue spring 7 is arranged on the outer sleeve of the guide rod of the lock tongue 4. The front end of the button 1 is a spherical head, the rear end is a square column and an oblique opening is formed at the end, and the oblique opening direction is consistent with the oblique installation direction of the roller 6. A sinking hole is provided in the middle of the lock tongue cover plate 3, and a round hole is provided in the middle of the door lock seat 8. The sinking hole, the middle of the square frame and the round hole are located on the same line. The button 1 is installed through the sinking hole and a reset spring 2 is sleeved, and its oblique opening part fits with the roller 5.

[0013] When closing the door, pressure is applied to the opening and closing door, and the corresponding position of the sealed door and the front inclined surface of the lock tongue 4 slide and rub, so that the lock tongue 4 moves into the door lock seat 8. After reaching the corresponding position, the lock tongue 4 is reset to the original position under the action of the lock tongue spring 7, so that the sealed door of the equipment is closed. When opening the door, the button 1 is pressed, and the rear inclined surface of the button 1 rolls and rubs against the roller 5, so that the lock tongue 4 slides to the right, so that the sealed door is opened.

Claims

1. A manual push button door lock, characterized in that: The door lock assembly comprises a button, a lock tongue cover plate, a lock tongue and a door lock seat, wherein fixed installation holes are respectively provided at corresponding positions of the lock tongue cover plate and the door lock seat, and bolts pass through the fixed installation holes of the lock tongue cover plate and the door lock seat to fix the two components in connection, and the part of the bolt passing through the door lock seat is used to fix the door lock in the installation position; gaps for installing the lock tongue are reserved on the front and rear sides of the door lock seat, and the lock tongue is installed in the door lock seat, the front side of the lock tongue is an inclined surface, and the middle part of the rear side is connected to a square frame, screw holes are provided on both sides of the rear side, and a plurality of holes are symmetrically provided at the rear ends of the left and right sides of the square frame, and the holes are obliquely arranged toward the front side of the lock tongue, and the roller is installed in the square frame through the hole. The outer surface of the roller shaft is provided with a roller in the square frame, and the roller shaft and the roller are clearance-fitted; a through hole is provided at the position corresponding to the screw hole on the lock tongue on the rear side of the door lock seat, the lock tongue guide rod passes through the door lock seat and is inserted into the screw hole to connect the lock tongue and the door lock seat, and a lock tongue spring is provided outside the lock tongue guide rod; the front end of the button is a spherical head, the rear end is a square column and an oblique mouth is formed at the end, the oblique mouth direction is consistent with the oblique installation direction of the roller, a countersunk hole is provided in the middle of the lock tongue cover plate, and a round hole is provided in the middle of the door lock seat, the countersunk hole, the middle of the square frame and the round hole are located on the same line, the button is installed through the countersunk hole and a reset spring is provided, and the oblique mouth part fits with the roller.

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